Linux – the linux command to find out the number of socket currently open

linuxsocket

I use that :

sudo watch lsof -i -4 -a -P

and it returns a list.

how to get the count?

I tried this but doesn't work.

sudo watch lsof -i -4 -a -P | wc -l

Best Answer

I agree, this should probably be on ServerFault.

But, until then:

The issue with what you are doing is the watch command. Watch repeats a command so that you can see the output again and again over time.

My lsof doesn't accept a -4 argument, but if yours does, then

sudo lsof -i -4 -a -P | wc -l

Works for me.

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